Stress and tiredness often leads to lack of concentration.

 Complete the sentence, using the correct tense of the verb in bracket: "Khang looked pale when he arrived for the exam. He had studied_____ hard."

Gothic Revival architecture has several basic characteristics that distinguish it from other nineteenth-century architectural styles.

The prices of the services/ reasonable/ every pocket

Both/ parents/ should/ take/ responsibility/ child raising.

 WWF, who name stands for World Wide Fund, was established in 1961.

Because of its vast tracts of virtually uninhabited northern forest, Canada has one of the lowest population density in the world.

Why did all the customers at the Red Lion have to pay off their beer that week?

The author has not rarely written anything that was not a best-seller.

In the United States, among 60 percent of the space on the pages of newspaper is reserved for advertising.

The columnist feels sure that who wins the election will have the support of both parties.

A coral reef, a intricate aquatic community of plants and animals, is found only in warm, shallow, sunlight seas.

All the children have to spend equal time study at school.

Rewrite sentences without changing the meaning. " Johnny is simply blind to his own shortcomings."

have/ Chung cake/ the/ of/ at/ Tet/ Vietnamese/ wrapping/ tradition.

If  a glass lizard loses its tails , a new one grows to replace it

The examination will test your ability to understand spoken English, to read non-technical language, and writing correctly 

How about booking tickets for the concert in advance?

ASEAN/ aim/ accelerate/ the/ economic growth, social progress/ cultural development/ the region

Mary found it hard to concentrate on her work because the noise.

Slippery/ roads/ be,/ team/ try/ best/ climb up.